Top Software Development Companies for Software Testing

Between them, the 129 software development companies on this page cover software development (116), web development (100), web design (99) and UI/UX design (83). They also list work in Lviv, Kyiv, Ivano Frankivs'k, Ukraine and Europe. 129 of them have written a profile you can read before you get in touch.

1. 1

   

   EffectiveSoft

   Mobile App Development · Web Development · Web Design · Also in United States of America

   EffectiveSoft is a product engineering company, founded in 2001, that develops custom software and applies AI to it.

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   Why #1: Founded 2001 · ISO 27001 · Team of 250+, as stated on its own website, read 5 Oct 2026

   Not yet on record: client reviews, vetting.

2. 2

   

   NetSet Software Solutions

   Software Development · Web Development · Web Design · Also in India

   NetSet Software Solutions is an engineering company working from India since 2011.

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   Why #2: Founded 2011 · ISO 9001, ISO 27001, professional accreditation · Placed below first here: a listing leads at most 5 rankings, as stated on its own website, read 5 Oct 2026

   Not yet on record: client reviews, vetting.

3. 3

   

   Connections Romania

   Artificial Intelligence - AI · Consumer Products & Services · Energy & Natural Resources · Also in Bucharest

   Romanian technology group offering process automation, software development, IT operations and business process outsourcing

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   Why #3: Founded 2005 · ISO 9001, ISO 27001, professional accreditation · Placed below first here: a listing leads at most 5 rankings, as stated on its own website, read 28 Sept 2026

   Not yet on record: client reviews, vetting.

4. 4

   

   SimbirSoft Inc

   Custom Software Development · Software Development · Web Development · Also in United States of America

   SimbirSoft is a software company founded in 2001 by four engineers. It grew from a small team into a large firm.

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   Why #4: Founded 2001 · ISO 9001 · Team of 1,500+, as stated on its own website, read 5 Oct 2026

   Not yet on record: client reviews, vetting.

5. 5

   

   ScienceSoft

   Software Development · Quality Assurance · CRM Development · Also in United States of America

   US-headquartered IT consulting and custom software development company serving mid-sized and large organisations worldwide

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   Why #5: Founded 1989 · ISO 9001, as stated on its own website, read 6 Oct 2026

   Not yet on record: client reviews, vetting.

6. 6

   

   Langate Software

   Mobile App Development · Software Development · Web Development · Also in United States of America

   Langate Software builds applications for healthcare and enterprise clients, mainly in the United States, and has done so since 2001.

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   Why #6: Founded 2001 · Microsoft partner, as stated on its own website, read 6 Oct 2026

   Not yet on record: client reviews, vetting.

7. 7

   

   Oxagile

   Custom Software Development · Software Development · Web Development · Also in Belarus

   Oxagile is a custom software development vendor that has concentrated on video technology for over twenty years.

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   Why #7: In business 20+ years, as stated on its own website, read 5 Oct 2026

   Not yet on record: client reviews, vetting.

8. =8

   

   Academy Smart Ltd.

   Software Development · Web Design · E-Commerce Development · Also in Ukraine

   Custom learning management system developer building e-learning platforms and integrations for training providers and regulated organisations

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   Why #8 (shared): Founded 2009 · ISO 27001, as stated on its own website, read 6 Oct 2026

   Not yet on record: client reviews, vetting.

9. =8

   

   AI Software LLC

   Mobile App Development · Web Development · Web Design · Also in United States of America

   AI Software LLC is a software development and IT staff augmentation firm.

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   Why #8 (shared): Founded 2009 · Microsoft partner, as stated on its own website, read 5 Oct 2026

   Not yet on record: client reviews, vetting.

10. 10

    

    Otakoyi

    Custom Software Development · Software Development · Web Development · Also in Lviv

    Otakoyi is an IT company founded in Lviv, Ukraine, in 2011. It builds software for startups and established companies, and now stresses AI-driven development alongside its core web…

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    Why #10: Founded 2011, as stated on its own website, read 5 Oct 2026

    Not yet on record: client reviews, vetting.

11. 11

    

    Arcadia

    Mobile App Development · Custom Software Development · Software Development · Also in United Kingdom

    Arcadia, which presents itself under the name Software Country, is an international technology company providing custom software development and IT outsourcing.

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    Why #11: Founded 1993 · Team of 550+, as stated on its own website, read 6 Oct 2026

    Not yet on record: client reviews, vetting.

12. 12

    

    NetRom Software BV

    Mobile App Development · Software Development · Web Development · Also in Netherlands

    NetRom Software BV is a software development company that supplies dedicated nearshore engineering teams.

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    Why #12: Founded 1999 · Team of 500+, as stated on its own website, read 5 Oct 2026

    Not yet on record: client reviews, vetting.

13. =13

    

    Zfort Group

    Mobile App Development · Custom Software Development · Search Engine Optimization · Also in United States of America

    Zfort Group is an IT services provider that has worked since 2000. It covers consulting, planning, development and support of web and mobile software, with a growing focus on AI.

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    Why #13 (shared): Founded 2000 · Team of 200+, as stated on its own website, read 5 Oct 2026

    Not yet on record: client reviews, vetting.

14. =13

    

    EEU Software

    Software Development · Web Development · Web Design · Also in Romania

    EEU Software is a Romanian software company that has written applications since 2000.

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    Why #13 (shared): Founded 2000 · Team of 70+, as stated on its own website, read 5 Oct 2026

    Not yet on record: client reviews, vetting.

15. 15

    

    Lynx Solutions

    Mobile App Development · ERP Software Development · Software Development · Also in Romania

    Lynx Solutions is a software development company that builds custom applications for business clients and startups.

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    Why #15: Founded 2003 · Team of 70+, as stated on its own website, read 5 Oct 2026

    Not yet on record: client reviews, vetting.

16. 16

    

    Code Factory Group

    Mobile App Development · Custom Software Development · Software Development · Also in Romania

    Code Factory Group is an independent software company offering custom development and quality assurance.

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    Why #16: Founded 2004, as stated on its own website, read 5 Oct 2026

    Not yet on record: client reviews, vetting.

17. 17

    

    Godel Technologies Europe

    Artificial Intelligence - AI · Mobile App Development · Software Development · Also in United Kingdom

    Godel Technologies Europe is a software engineering company headquartered in the UK, with delivery teams in several locations in Belarus.

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    Why #17: In business 20+ years · Team of 1,300+, as stated on its own website, read 6 Oct 2026

    Not yet on record: client reviews, vetting.

18. 18

    

    FRILO Software GmbH

    Software Development · Web Design · UI/UX Design · Also in Germany

    FRILO Software GmbH develops software that structural engineers use to calculate and design building elements.

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    Why #18: In business 40+ years, as stated on its own website, read 28 Sept 2026

    Not yet on record: client reviews, vetting.

19. 19

    

    Unicorn

    Software Development · Web Design · UI/UX Design · Also in Czech Republic

    Unicorn is a European information technology company active since 1990.

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    Why #19: Founded 1990, as stated on its own website, read 5 Oct 2026

    Not yet on record: client reviews, vetting.

20. 20

    

    A12

    Android · Education · C++

    A12 is listed here for Ai² – Applicazioni di Ingegneria ed Informatica, a software and engineering company in Bari, southern Italy.

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    Why #20: Founded 1991, as stated on its own website, read 28 Sept 2026

    Not yet on record: client reviews, vetting.

21. 21

    

    CN Group CZ s.r.o.

    Software Development · UI/UX Design · Quality Assurance · Also in Czech Republic

    CN Group CZ s.r.o. develops software on an outsourced basis for customers in Scandinavia, Germany, Austria, Switzerland and the UK.

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    Why #21: Founded 1994, as stated on its own website, read 5 Oct 2026

    Not yet on record: client reviews, vetting.

22. =22

    

    SolutionStream

    Mobile App Development · Software Development · Web Development · Also in United States of America

    SolutionStream is a software development agency based in Lehi, Utah. It was founded in 1996 and designs, builds and modernises business platforms.

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    Why #22 (shared): Founded 1996, as stated on its own website, read 5 Oct 2026

    Not yet on record: client reviews, vetting.

23. =22

    

    SolutionStream

    Mobile App Development · Custom Software Development · Software Development · Also in United States of America

    SolutionStream is a software development agency based in Lehi, Utah, founded in 1996.

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    Why #22 (shared): Founded 1996, as stated on its own website, read 5 Oct 2026

    Not yet on record: client reviews, vetting.

24. 24

    

    AROBS Software

    Mobile App Development · Software Development · Web Development · Also in Romania

    Romanian custom software developer building web, mobile, embedded and cloud systems for travel, automotive and life sciences

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    Why #24: Founded 1998, as stated on its own website, read 5 Oct 2026

    Not yet on record: client reviews, vetting.

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